<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Hello, world! webrx</title>

</head>
<body>
<style>
    .myt {
        width: 350px;
        height: 280px;
        border-collapse: collapse;
    }

    .myt td, .myt th {
        border: 1px solid rgba(0, 0, 0, 1);
        text-align: center;
        vertical-align: middle;
    }

    caption {
        color: gray;
        font: 25px "";
        margin-bottom: 12px;
    }
</style>
<table class="myt">
    <caption>表格设计案例</caption>
    <tr>
        <th>1</th>
        <th>2</th>
        <th>3</th>
    </tr>
    <tr>
        <td>4</td>
        <td colspan="2">56</td>
    </tr>
    <tr>
        <td colspan="2">78</td>
        <td>9</td>
    </tr>
    <tr>
        <td>10</td>
        <td colspan="2" rowspan="2">11</td>
    </tr>
    <tr>
        <td>13</td>
    </tr>
    <tr>
        <th colspan="1000">1234</th>
    </tr>
</table>
</body>
</html>
